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DAVID L. s'rILEs` or .1?.o-oiiiisrnn,V New YORK,` AssIeNoR 'To AUGUSTAr. seines,V or SAME PLACE.

Letters Patent No. 75,594, dated .March 17, 1868.

IMPROVEMENT Infine-Pers son srovns.

TO ALL WI-IOM IT MAY; CONGERN:l

Be it known that I, DAVIDAL. STILES, of Rochester, in the county ofMonroe, und State of New York, have invented a certain new and usefulImprovement in Fire-Pots for Stoves; and I do hereby declare that thefollowing is a full and exactidcscription thereof, reference being hadto'the accompanying drawings, making part of this specification.

Figure 1 is a'perspective view of my improved fire-pot.

Figure 2, a central vertical section.

Figure 3, a horizontal section.

Figure 4, a View of one of the staves.

Like letters of reference indicate corresponding parts in all theiigures.

My invention consists in the combination, with a re-pot constructed ofiron stares iitting together, of 1ongitudinal passages through the same,for the passage of air, and perforations, slots, or equivalent openingsfrom said passages, throughthe whole inner surface of the fire-pot, forthe lintroduction ofthe air to burn the gases, as hereinafter set forth.v

In thedrawings is shown the fire-pot, which is composed of a series ofcast-iron staves, A A, ittting together, at top and bottom,'in rings aalot' the plates of the stove, as represented. These staves are -so castas to form ilongitudinal air-passages or grooves, c c, through the wallsoi'V the fire-pot, as most clearly shown in the crossseotion, fig. 3.VIprefer to cast ahalt` groove in each side of a stave, as shown; but, ifdesired, the whole groove may he formed in the ,centre of each stave.These grooves extend from bottom to top of the Ere-pot. From the groovesc c numerous perforations, slots, or equivalent passages, ff, openradially to the interior of the Ere-pot, thus covering its whole innersurface with air-holes; as indicated.

This making of the fire-pot in stares, and the combination therewith ofthe air-passages and numerous perforations, not only secures simplicityin construction, but also secures a. most complete combustion. andburning of the gases, which usually escape. Whenever any portionA of thetire-pot burns out it is easily replaced'. The

air-passages, however, in a great degree, preventburning out, by keepingthe staves cool. The contraction of the top -of thc fire-pot, as shown,causes the gases to Ypass slowly along the inner surface of the same,and, the air from thenumerous perforationsfj' coming in contacttherewith, supplies the necessary oxygen to produce a most perfectcombustion. The great surface et' theire-pot occupied by the saidperforations insures the supply of a continuous sheet of air. I

It will be noticedV that the casting et' the staves is very readilyaccomplished so as to fit together and form both the passages c andperforationsf. It is only necessary to cast grooves for the one andnotches for the other, as shown `in fig. 4.

By the means above described, it will be noticed that I allow thepassage of air directly through the staves i forming the walls of thetire-pot, whereby I notonly simplify the construction, but also producea greater heating-power hy radiation directly from the body of thefire-pot without the interposi/tion of a surrounding cylinder, as isrequired in allbthcr stoves of this hind with which I am acquaintedwhere air must he held to the body of the fire-pot to allow it to passthrough holes in the sides. By passing the air directly through the.stavcs themselves, I avoid the necessity'oi' such asurroundingcylinder.

I do not claim simply forming a fire-pot of staves, nor simplyair-passages and perforations in other relations, as I am aware thateach has before been used separately; but

What I claim as my invention, and desire to secure by Letters Patent,is-

The combination, witha fire-pot formed of' a series of s taves, ofpassages formed in said stares, which will allow air to pass directlythrough the wall of the lire-potri'rem the base, as herein set forth.

I also claim, in combination with a'iire-pot, made of a series ofstaves, and having air-passages passing directly through the walls oi'the fire-pot from the hase, a series of perforations, slots, orequivalent passages, opening through the whole interior of the fire-potto admit air to burn the gases, as herein set forth.

lIn witness'whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

DAVID L. STILEVS.

Witnesses:

R. F. Oscoop, J. A. DAvIs.

